I'm concerned that you're laughing at my opinion that taking your kids scuba diving without formal training and looking for the cheapest way to get a C-card isn't very responsible.
You seem to think that none of it matters, and it's not just your own life you're risking.
There are scuba diving instructors and certification agencies for a reason. Saying "most certified divers don't have a clue" or however you put it, is irrelevant.
What "skills" are acquired during OW that you can't learn with a mentor? Don't hold your breath? Clear your mask? Once?
If they want to learn more when they get older then they can go take fundies or ITT..
I have never said "most certified divers don't have a clue". And I would venture to say that most divers on SB have gone well above and beyond the bare minimum required for diving....why else do we spend time on a forum dedicated to it?